Air Quality
Excellent
No health implications.
21
PM2.5
36
PM10
16
O3
0.5
CO
5
SO2
25
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 Oct
65
Good
Sun
26 Oct
59
Good
Mon
27 Oct
56
Good
Tue
28 Oct
62
Good
Wed
29 Oct
63
Good
Thu
30 Oct
41
Excellent
Fri
31 Oct
17
Excellent
Air quality in the last 12 months (Haiyuan)
|
2025/08
|
43
|
36
|
36
|
32
|
32
|
41
|
42
|
15
|
25
|
36
|
47
|
32
|
32
|
25
|
30
|
24
|
23
|
21
|
41
|
165
|
18
|
27
|
17
|
19
|
18
|
16
|
13
|
16
|
15
|
22
|
28
|
|
2025/07
|
28
|
27
|
55
|
76
|
22
|
33
|
24
|
50
|
25
|
34
|
23
|
35
|
26
|
51
|
51
|
47
|
46
|
53
|
77
|
29
|
28
|
25
|
38
|
25
|
27
|
27
|
29
|
26
|
32
|
30
|
77
|
|
2025/06
|
44
|
45
|
32
|
40
|
35
|
44
|
51
|
51
|
52
|
44
|
49
|
66
|
78
|
90
|
68
|
54
|
51
|
50
|
40
|
30
|
38
|
32
|
23
|
25
|
26
|
22
|
25
|
32
|
54
|
19
|
|
|
2025/05
|
108
|
161
|
96
|
181
|
294
|
162
|
96
|
132
|
102
|
49
|
45
|
59
|
101
|
59
|
53
|
115
|
265
|
69
|
64
|
58
|
172
|
111
|
34
|
40
|
43
|
46
|
35
|
32
|
45
|
98
|
53
|
|
2025/04
|
109
|
95
|
117
|
133
|
83
|
96
|
78
|
159
|
127
|
78
|
252
|
356
|
173
|
49
|
126
|
232
|
108
|
280
|
161
|
160
|
198
|
98
|
60
|
63
|
66
|
50
|
59
|
52
|
94
|
307
|
|
|
2025/03
|
85
|
39
|
43
|
56
|
52
|
45
|
73
|
76
|
118
|
73
|
222
|
95
|
108
|
63
|
47
|
51
|
40
|
31
|
48
|
67
|
65
|
73
|
196
|
199
|
195
|
410
|
118
|
115
|
62
|
74
|
66
|
|
2025/02
|
54
|
48
|
36
|
43
|
39
|
68
|
72
|
61
|
57
|
53
|
111
|
78
|
69
|
54
|
65
|
118
|
81
|
76
|
56
|
69
|
69
|
53
|
38
|
53
|
63
|
58
|
61
|
67
|
|||
|
2025/01
|
64
|
60
|
76
|
93
|
58
|
52
|
59
|
44
|
60
|
64
|
88
|
158
|
290
|
54
|
56
|
55
|
68
|
61
|
61
|
57
|
79
|
74
|
119
|
147
|
101
|
102
|
74
|
75
|
96
|
74
|
51
|
|
2024/12
|
43
|
54
|
59
|
49
|
52
|
49
|
46
|
48
|
58
|
69
|
75
|
59
|
65
|
56
|
72
|
84
|
76
|
59
|
56
|
51
|
52
|
53
|
64
|
85
|
73
|
70
|
38
|
58
|
64
|
55
|
56
|
|
2024/11
|
38
|
38
|
51
|
56
|
60
|
56
|
56
|
51
|
58
|
56
|
52
|
60
|
57
|
55
|
90
|
42
|
42
|
26
|
45
|
52
|
55
|
57
|
60
|
48
|
54
|
73
|
79
|
60
|
41
|
46
|
|
|
2024/10
|
39
|
32
|
35
|
25
|
33
|
49
|
47
|
47
|
55
|
51
|
45
|
35
|
37
|
44
|
54
|
51
|
37
|
44
|
25
|
42
|
36
|
30
|
41
|
38
|
54
|
49
|
39
|
43
|
51
|
37
|
44
|
|
2024/09
|
56
|
38
|
35
|
66
|
19
|
15
|
27
|
37
|
30
|
24
|
24
|
32
|
22
|
33
|
25
|
23
|
42
|
43
|
73
|
43
|
38
|
39
|
42
|
53
|
45
|
40
|
56
|
74
|
30
|
28
|
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
Air quality source: CNEMC
*: primary pollution